參數(shù)資料
型號(hào): AD7776
廠商: Analog Devices, Inc.
英文描述: LC2MOS, High Speed 1-, 4- & 8-Channel 10-Bit ADCs
中文描述: LC2MOS,高速1 - ,4 -
文件頁(yè)數(shù): 11/12頁(yè)
文件大小: 220K
代理商: AD7776
AD7776/AD7777/AD7778
–11–
REV. 0
RT N is tied to REFOUT then the analog input range becomes
0 V to 2 V. T he fixed 2 V analog input voltage span of the ADC
can range from 1 V to 3 V (RT N = 0 V) to 0 V to 2 V (RT N =
2 V), i.e., with proper biasing, an input signal range from 0.3 V
to 2.3 V can be covered. Both the relative accuracy and differen-
tial nonlinearity performance remains essentially unchanged in
this mode while the SNR and T HD performance are typically
2 dB to 3 dB worse than standard.
Changing the Analog Input Voltage Range
By biasing the RT N pin above AGND it is possible to change
the analog input voltage range from its V
BIAS
±
V
SWING
format to
a more traditional 0 V to V
REF
range. T he new input range can
be described as
V
OFFSET
to
(
V
OFFSET
+ REFIN
)
where 0 V
V
OFFSET
1 V. T o produce this range the RT N pin
must be biased to (REFIN – 2 V
OFFSET
). For instance if
OUT LINE DIME NSIONS
Dimensions shown in inches and (mm).
R-24
24-Lead Wide-Body SOIC
PIN 1
0.299 (7.6)
0.291 (7.4)
13
12
1
24
0.419 (10.65)
0.394 (10.00)
0.013 (0.32)
0.009 (0.23)
0.005 (1.27)
0.015 (0.40)
0.614 (15.6)
0.598 (15.2)
0.104 (2.65)
0.093 (2.35)
0.012 (0.3)
0.004 (0.1)
0.019 (0.49)
0.014 (0.35)
0.050 (1.27)
BSC
R-28
28-Lead Wide-Body SOIC
PIN 1
0.299 (7.60)
0.291 (7.39)
15
14
1
28
0.414 (10.52)
0.398 (10.10)
0.03 (0.76)
0.02 (0.51)
0.013 (0.32)
0.009 (0.23)
0.042 (1.067)
0.018 (0.457)
0.708 (18.02)
0.696 (17.67)
0.096 (2.44)
0.089 (2.26)
0.01 (0.254)
0.006 (0.15)
0.019 (0.49)
0.014 (0.35)
0.050 (1.27)
BSC
1. LEAD NO. 1 IDENTIFIED BY A DOT.
2. SOIC LEADS WILL BE EITHER TIN PLATED OF SOLDER DIPPED
IN ACCORDANCE WITH MIL-M-38510 REQUIREMENTS.
相關(guān)PDF資料
PDF描述
AD7776AR LC2MOS, High Speed 1-, 4- & 8-Channel 10-Bit ADCs
AD7777 LC2MOS, High Speed 1-, 4- & 8-Channel 10-Bit ADCs
AD7777AN LC2MOS, High Speed 1-, 4- & 8-Channel 10-Bit ADCs
AD7777AR LC2MOS, High Speed 1-, 4- & 8-Channel 10-Bit ADCs
AD7778 LC2MOS, High Speed 1-, 4- & 8-Channel 10-Bit ADCs
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